Means for controlling the flow and delivery of liquid for surgical medicinal, and other purposes.



Patented Allg. 26, 1913.

P. W. LAMBDEN.

IEAHS FOB. GONTROLLING THE FLOW AND DELIVERY 0F LIQUID FOB. SURGICAL,

MEDIGINAL, AND OTHER PURPOSES.

APPLIOATIOI FILED JULY 16,*1900. 1,071,062.

i ED sTaTEs PATENT OFFICE.

FRANK w. LAMBDEN, or CHICAGO, ILLINOIS;

MEANS FOR CONTROLLING THE FLOW AAND DELIVERY OF LIQID FOR SURGICAL,

' MEDICINAL, AND OTHER PURPOSES.

Specification of Letters Patent.

' Patented A ug. 26,1913.

Application filed July 16, 1903. l Serial No. 507,937i

My invention is particularly adapted for the purpose of controlling theflow and. delivery of a liquid, for surgical or medicinal purposes such,for example, as a saline solu tion, now very generally used by themedical profession. In the preferred form shown, it is illustrated asbeing employed in connec tion with an ordinary fountain syringe, and

as adapted forncontrolling 'the delivery of.

such a solution into the large bowel by way .of the rectum, which isbecomingrecognized as a desirable method of employing such a solution.It iS also adapted vfor use in any case where it may be desired tocontrol the delivery of a fluid, either for surgical, medicinal 0r anyother lpurpose-- .The main controlling features may also lbe employedwith other forms of devices than those shown. p i f f.

To this -end my invention consists 1n the.

novel construction, arrangemenQand oombi- Y nation of parts herein shownand described,

an'd more particularly pointed out in the claims. c

In the drawings, wherein 'like reference characters indicate like 'orcorresponding parts; Figure l'illustrates my invention employed inconnection with an' ordinary fountain syringe, Ifig. 2 1s a somewhatsimilar view indicating a difference in'position' only of my improvementin relation to -theV receptacle; and Fig. 3 is a vertical sectionparticularly illustrating the preferred form' of my invention. l

In the preferred forni shown in the drawings, l represents 'atransparent glass j tube of suitable length which is. enlarged ata pointbetween its ends as at 2,'an'd provided with suitable ribs 3-3 near itsends for the purpose -of engaging the ends of the resilient or elastictube 4,' 5, employed therewith.; The upper' section 6, of 'the tubeextends downward into the enlargement 2 as indicated at 7 so that theliquid passing tl1erethrough will drop from the end df the pal-t 7 thusproviding visible means for ascertaining the rate of flow. The lower endof the parti is preferably reduced in Size so that a permeable body asuch as absorbent cotton or the like may be retained in the tube,through which the fluid shall percolate. The cotton also serves torestrict the opening in the tube and thus aids in controlling t'hedischarge of fluid therethrough, The tube is preferably of glass-orother transparent material so as to practically form a sight glass byme'ans `of which the Surgeon or party using it can readily determine byobservation the rate/et which the.

fluid-is .being delivered. A l '8 is the ordinary'fluid receptaclel lyided with the tube 4 which is separtedlg: peut, with the tube 1 -6 frictionally engagg the free endsthereof, as shownv.

A9 Ais asuitable nozzle'which maybe employed, for illustration, asin--the .us'eofl lsaline solution inintestina'l treatment, for

.the introduction of suchj fluid into l't'luejintes-v p tine orlargefbowel.

It is obvious that the'vpressure Vbroughtv i upon the' permeable'material@ as shown inv Fig. 'I, will 4depend' upon vthe height ofthefluid above the tube.' For example,l'as shown i Ain fullilines in'uFig,1', theheight-ofthe. column of fluid' is as frornA to B,w 'hi le, if 85shown fin;l dotted lines, theheightof lthe'column wouldbe as vC to. D,thus,regulating the pressure;V p

By my improved device I' amable to deliver' the fluid as desired.v 'Thatis, it r'na y if desired,'be drop 'by drop, and the number of drops per,minute may; vbe .regulatedxby the pressure, as -above stated, taking'into consideration t-he character andthe manner in4 which'the permeablematerial a' iszpackod .into theend 6 of the tube; I .have', in prac 95tice, had no difliculty whateverin delivering HavingA 'tinusdescribedmyinventio'n, isohvious' that it may bev modified toa cnsiderable extent wthoi-it sac'riiing,any ofthe and construction shown.

`transparent bulbous valuable features referred to, and hence I do notwish to be limited to the exact form What I clairn as new,and desire tosecure by LettersPatent is '1..In a liquid dropping apparatus, a liquidreceptacle, a nozzle, an imperforate Imember, provided with inlet andoutlet tubes extending therefrom, the inlet tube being in axialalinement with the outlet tube and the lower end thereof -extendingdownwardly into thebulbous member and terminating in a downwardlyvopening restricted outlet, a flexible tube connecting the inletl-tubeand the liquid receptacle, and a flexible tube connecting theoutlet tube and the nozzle.

2. In a liquid dropping apparatus, an imperforate transparent bulboustion, an outlet tube extending downwardly therefromgand a downwardlyextending inlet tube having its lower end projecting into the bulbousbody portion, and reduced'at its extremity to form a restricted outletin axial alinement with the outlet tube, and a llling of permeablematerial in the inlet tube above the restricted nd't-hereof.

In -testimony whereof, hlave vhereunto signed my name in the presence oftwo subscribing witnesses.

l FRANK W. LAMBDEN.

Witnesses: i

ROY W. Him., CHARLES I. COBB.

body por-

